# @Version : 1.0
# @Author  : 刘宇
# @File    : 09_if_3.py
# @Time    : 2025/10/7 16:17

grade=int(input("请输入小头儿子的期末成绩[整数]："))
if grade >=0 and grade <=100:
    if grade==100:
        print("奖励一辆BMW")
    elif grade>80 and grade<=99:
        print("奖励一台iPhone 17 ProMax")
    elif grade>60 and grade<=80:
        print("奖励一个iPad air 5")
    else:
        print("啥也没有，免费一个大嘴巴子")
else:
    print(grade,"不在0~100")